LNER Peppercorn Class A1

The Peppercorn Class A1 was a class of 4-6-2 Pacific steam locomotives designed by Arthur Peppercorn for the London and North Eastern Railway to haul the heaviest express passenger trains on the East Coast Main Line. Forty-nine were built at Doncaster and Darlington Works between 1948 and 1949, ordered by the LNER but delivered after nationalisation had made them part of British Railways. They had three cylinders and a double Kylchap chimney, and could pull a train of up to 550 long tons on the flat at 60 to 70 mph. Their names ranged from racehorses to characters from the works of Sir Walter Scott. All 49 had been scrapped by 1966, the last withdrawn being number 60145 Saint Mungo, and none survived into preservation, though a fiftieth engine, Tornado, was completed in 2008.